Sorry to hear that he needs more healing. about
that pain at his penis tip, that is likely due to the sensitive tissue inside the urethra being irritated. To keep that to a minimum, clean the catheter with a warm slightly soapy wash cloth to remove the dried crust that builds up there from urine and mucus that dries and becomes an irritant, then apply a small amount of neosporin on the first inch of the tube where it exits. The idea is to have the tube clean and lubed where it will be sliding in and out as he moves. This cleaning and lubing should be done several times a day, at least. Oh, and be carefull with the soap to not get any in the tip of the penis since it is probably irratated and will burn some. When cleaning the tube, try sliding the penis back some to expose more of the tube. Well, that is some fun stuff? Hopefully when the thing is removed, he will be continent ,or at least sort of, and you and him can get on with more fun things. Like the others said, bring some briefs or better some depends mens diapers to the next visit and wear gym pants. The diapers may be and overkill but better safe than sorry. Almost everybody leaks at first so plan for that. Good luck
Ron